Year	constant 2015 US$
1970	34640033068.0996
1971	38457042471.84042
1972	36336922599.97931
1973	41463180737.83195
1974	45364761806.34491
1975	46921897282.21552
1976	50388219489.51117
1977	50721297922.90995
1978	42360979642.45113
1979	43356370776.06692
1980	46242347835.07281
1981	47257951844.57989
1982	48986710757.46611
1983	46455761082.98022
1984	51574950914.53958
1985	53062395370.46601
1986	61582680582.82521
1987	58867086907.099266
1988	55458427198.5119
1989	51625049085.46034
1990	48900403017.464066
1991	46160132272.398445
1992	45865619510.17875
1993	48559140229.40991
1994	52170300713.03087
1995	56795577141.67611
1996	57659522579.31174
1997	67811842513.17553
1998	76064400124.00533
1999	70317991112.94818
2000	71131838379.66307
2001	67592973028.83121
2002	66707698666.94219
2003	65448424098.377556
2004	76367593262.37466
2005	84481512865.55746
2006	94258964555.13068
2007	104910034101.47768
2008	105492239330.37093
2009	90538183321.2772
2010	93466322207.29561
2011	97950108504.70183
2012	101653156970.13533
2013	108577617030.07126
2014	107546760359.61554
2015	104488043815.23195
2016	106841417794.77107
2017	110811697840.2397
2018	115104267851.60687
2019	120565216492.71465
2020	116718569804.6915
2021	114451875581.27515
2022	123620956908.13263
2023	121677792704.35046